oil well

Credit: Coast Guard. I wrote about this issue back in May and June, and now the lead investigator of the presidential commission investigating the Deepwater Horizon oil spill in the Gulf has delivered to commissioners a letter that asserts that Halliburton staffers knew there were problems in the cement mixture used to line the drill…

The AP is reporting that there have been numerous problems and failures related to the use of cement in sealing oil wells in the Gulf of Mexico. One current theory is the the Deepwater Horizon spill also may have been caused by problems with cement. And, apparently federal regulators never set standards about what type…